Commands by ariver (2)

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Lookup your own IPv4 address

Change string in many files at once and more.
Find all files that contain string XXX in them, change the string from XXX to YYY, make a backup copy of the file and save a list of files changed in /tmp/fileschanged.

tail: watch a filelog
-f file(s) to be monitorized -n number of last line to be printed on the screen in this example, the content of two files are displayed

Tail postfix current maillog and grep for "criteria"
Tail curren postfix maillog.

Create a nifty overview of the hardware in your computer
After the command is done, open the html file in a browser

Suppress output of loud commands you don't want to hear from
This works even if there are spaces in any word in the command line.

What is my ip?

Get all IPs via ifconfig
Fetches the IPs and ONLY the IPs from ifconfig. Simplest, shortest, cleanest. Perl is too good to be true... (P.S.: credit should go to Peteris Krumins at catonmat.net)

Your GeoIP location on Google Maps

Detect illegal access to kernel space, potentially useful for Meltdown detection
Based on capsule8 agent examples, not rigorously tested

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